Steam-trap



A. B. WALLEM.

STEAM TRAP.

APPLICATION FILED MAY 27, 1919.

Patented July 27, 1920.

UNITED STATES PATENT OFFICE.

AXEL B. WALLEM, F CYNWYD, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO H. S. B. W.COCHRANE G-OBPORATION, OF PHILADELPHIA, PENN-SYLVANIA, A CORPORATION OF PENNSYLVANIA.

STEAM-TRAP.

Specification of Letters Patent.

Application filed May 27, 1919. Serial .No. 300,041.

To all whom it may concern.

Be it known that I, AXEL B. VALLEM,

a citizen of the United States of America.

residing at (lynwyd, in the county of Montgomery, State of Pennsylvania,have invented certain new and useful Improvements in SteaniTraps, ofwhich the following is a true and exact description, reference being hadto the accompanying drawings, which form a part thereof.

The general object of my present invention is to provide an improvedfloat actuated steam trap characterized by its simplicity inconstruction and reliability in operation and by the relatively low costof manufacture made possible by the simplicity of its con struction andcomparatively small bulk.

The various features of novelty which characterize my invention arepointed out with particularity in the claims annexed hereto and forminga part of this specification. For a better understanding of theinvention, however, and of the advantages possessed by it, referenceshould be had to the accompanying drawings and descriptive matter inwhich I have illustrated and described a preferred embodiment of myinvention.

Of the drawings:

Figure l is a front elevation with a portion of thetrap broken away andin section.

Fig. 2 is a section on the broken line 2-2 of Fig. l, but with themovable parts of the trap shown in a dillerent position in Fig. 2 thanthat occupied by them in Fig. l, and

Fig. 3 is a partial section on the lines 3-3 of Fig. 2.

The trap comprises a casing consisting of a main casing part A open atone side, and a cover part A secured to the casing body by bolts H. Thecasing interior is divided into an inlet chamber A occupying the greaterportion of the interior of the casing, and an outlet chamber A",separated by the partition wall A", which is an integral portion of themain casing part A. An outlet port A opens from the outlet chamber A andan inlet port A opens to the inlet cham ber A The partition wall Acomprises two spaced apart portions parallel to the division planebetween the casing body A and the cover A, spaced apart from one anotherand from the adjacent side walls of the chamber A Alined holes'A and Aare formed in the parallel portions of the partition wall A These holessnugly receive the ends of the valve seat member B, which is in the formof a tubular body with peripheral ports B, and is formed at its outerend with a collar or enlargement B which abuts against the correspondingportion of the partition wall A, and is secured to the latter wall bylike end D of the float arm D. As shown,

the arm D is secured to the end of the valve G by screws. At itsopposite end the arm D is secured to the float E. Advantageously the armD is offset to bring the float end of the arm close to the central planeof the trap. Advantageously, as shown, the partition A is provided witha projection A engaged by the arm D to arrest the downward movement ofthe arm when the valve C is in its closed position.

The casing section A is formed with a surface A which abuts against theouter end of the valve C, or rather as shown with a projection formed onthe spider portion of the arm D coaxially with the valve member C, andthereby prevents displacement of the valve member C. Advantageously, Iprovide means for positively holding the trap valve in its openposition. As shown, the means for this purpose comprise a shaft Ejournaledin the casing section A, and provided at its inner end with acrank pin E normally out of the path of movement of the arm D, butadapted to be moved into engagement with the latter and to turn it intoits valve open position, as shown in Fig. 2, when the shaft Fl -isrotated. To rotate the shaft E a handle E is secured Patented July 2'7,1920.

In normal operation the'valve member C is below the Water level in thetrap so that the valve 18 water sealed, thus permittlng a looseness offit insuring a minimum of fric- 'tional resistance and liability of thevalve sticking in its seat without giving rise to objectionable leakageunder the moderate pressure conditions for which the trap is especiallydesigned. The construction permits of afloat of ample size to insure adesirably positive action while keeping the bulk and weight of the trapas a whole desirably small. The means provided for holding the valve inits wide open position,

' regardless of the accumulation of water in the trap are simple andeasily operated. The trap may be quickly and easily taken apart forcleaning, inspection-and repairs. The valve is perfectly balancedagainst the fluid pressure and the construction employed permits thevalve and valve seat "ports to be made desirably large.

WVhile in accordance with the provisions of the statutes I haveillustrated and de scribed the best form of my invention now known tome, it will be apparent to those skilled in the art that changes may bemade in the form of my invention without depart ing from its spirit, andthat some features of my invention may sometimes be used to advantagewithout a corresponding use of other features.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is: I

1. in steam trap comprising inlet and outlet chambers having a casingmade up of two separable cast sections, and having its outlet chamberformed in and integral with one of said sections by a wall projectinginto the tions by a wall projecting into the inlet chamber portionthereof, and comprising two oppositely lying wall portions through whichalined openings are formed, in combination with a tubular valve seatmember having its ends received in said opening, and formed with portsbetween its ends, a tubular valve mounted in said valve seat member andheld in place by abutment against the separable cast section of thecasing, and a float in the inlet chamber connected to said valve.

3. A steam trap comprising inlet and outlet chambers having a casingmade up of two separable cast sections, and having its outlet chamberformed in and integral with .one of said sections by a wall projectinginto the inlet chamber portion thereof, and

comprising two oppositely lying wall portions through which alinedhorizontal openlngs are formed, in combination with a horizontal tubularvalve seat member having its ends received in said opening, and formedwith ports between its ends, a tubular valve mounted in said valve seatmember, a float in the inlet chamber connected to said valve, and amechanical device for raising the float and opening the valve secured tothe separable section of the casing and removable with it.

AXEL B. WALLEM.

